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This article will explain in detail about using the at command of linux to schedule tasks at one time. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The at command allows you to specify the time to run the script, and at's daemon, atd, runs in background mode, checking a special directory on the system to get the submitted jobs of the at command. By default, the atd daemon checks the directory every 60 seconds. The running time of the job is checked when there is a job, and if it matches the current time, the job is run.

Syntax format: at [parameters]

Common parameters:

Atq view waiting jobs in the system-d delete waiting jobs in the system (equivalent to the atrm command)-c print the contents of the task-Q use the specified queue-f to submit the specified file to the waiting job-t submit the running job in the form of time

Reference example

View the waiting jobs in the system:

[root@linuxcool ~] # atq

Use "at-d" or "atrm" (equivalent) to specify id to delete waiting jobs from the system, where id is the first line of sequential numbers output by the "atq" command:

[root@linuxcool ~] # at-d 1 [root@linuxcool ~] # atrm 1

Assuming that a linuxcool.sh script exists, run it immediately:

[root@linuxcool] # at-f linuxcool.sh now

Run the linuxcool.sh script after 25 minutes:

[root@linuxcool] # at-f linuxcool.sh now+25 min

Run the linuxcool.sh script at 10:11:

[root@linuxcool] # at-f linuxcool.sh 10:11

Run the linuxcool.sh script on July 27th, 2019:

[root@linuxcool ~] # at-f linuxcool.sh 07 linuxcool.sh 27 at 2019 about using the at command of linux to schedule tasks at one time, so much for sharing here. I hope the above content can be helpful to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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